Christian is an Austrian expert in bibliometrics and savvy in Open Access. He holds a doctorate in veterinary medicine and a master's degree in Library and Information Science. As the Head of the Bibliometrics and Publication Strategies team of the Vienna University Library, he has been involved in promoting Open Science initiatives in Austria. His work includes leading a subproject in the Austrian Transition to Open Access 2 project (AT2OA2), investigating the visibility of Open Access publications using alternative metrics, as well as co-leading the ORCID Austria Consortium.

Lothar studied History and Numismatics at the University of Vienna and trained as a Library and Information Specialist at the Austrian National Library in Vienna. Over the past 30 years, he has held various positions as a historian, archivist, librarian, and data analyst in both the private sector (Vienna; Hong Kong) and the public sector (University of Vienna; Museum of Military History, Vienna; New York University, New York). From 2016 to 2022, he worked as a data analyst and project coordinator for the Austrian Open Access initiatives AT2OA and AT2OA² (Austrian Transition to Open Access). Since October 2022, Lothar has served as Deputy Head of the Bibliometrics and Publication Strategies team at the Vienna University Library.